I really can't make any promises whether you'll like them or not although I'd love to. It might just be a tad over the top to compare them to headphones about 20-30 times the price, but again, the sound they produce for this little money is, to my ears at least, phenomenal. Again, maybe you have a bit to spare and you wanna try them, but if you already have some decent in-ears, I don't know if I would recommend them since these are not "giant killers" so to speak.
We all hear in-ears or headphones in general differently and everyone has their own taste in sound signature. Also, to prove myself that I'm not crazy I also watched a video on YouTube about them, just type in the name and you'll find a mentioned review (not sure if I'm allowed to post links?). The reviewer owns a lot, or at least tested a lot of different in-ears in different price ranges and he found them to be rather decent! His opinions pretty much match mine.
I think what's really amazing them is just that a child with some pocket money could afford them and they for sure sound a TON better than "usual" in-ears in that price category. I have to be very careful to not really like them because they are just so cheap, but really, the price-performance ratio is crazy IMO. They immediately, without a doubt, "kill" the KZ-ATE I also own.
If you don't order these, hey, just wait a bit until there will be a unit with even more reviews and praise and then you can pull the trigger. But if you have the money to spare and you want a cheap replacement headphone, or if you're just as curious as me, go for it!
P.S. Chances are high that I'll finally receive my Hisenior 16BA In-Ears tomorrow! If I do, I'll post some impressions as soon as possible. I cannot wait to try them and even compare them to the VK1.
@menuki which seller did you buy from aliexpress and are these iems easy to drive on weak sources like smartphone etc? I am interested thanks